ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.4 > T22.44 > T22.441 T22.441 Corrosion of unspecified degree of right axilla Non-Billable/Non-Specific Codes T22.441A..., initial encounterT22.441D..., subsequent encounterT22.441S..., sequela